"Yeah, we usually are in line. No one's here. This is pretty rare really," Pewaukee voter Kathy Dempsey said.

The nonpartisan race for Wisconsin Supreme Court is the only statewide contest on the primary ballot.

The field of candidates for the high court will be narrowed from three to two following the election. Justice Pat Roggensack is seeking a second 10-year term and is being challenged by Marquette University law professor Ed Fallone and Milwaukee consumer law attorney Vince Megna.

The two highest vote-getters will face each other in the April 2 election.

The Government Accountability Board predicted turnout for the election would be less than 10 percent. A wintry blast of weather across the state, with cold temperatures and snow in the forecast, could also keep voter numbers down.

Washington County Clerk Brenda Jaszewski said she checked in with two municipal polling locations in West Bend Tuesday morning.

"It's been very, very slow," Jaszewski said.

The primary race for state Supreme Court has been lower profile than other recent high court elections.

Roggensack has based her campaign around her nearly 17 years' experience as a judge, including the past 10 on the Supreme Court. Neither of her two challengers has served as a judge, and Roggensack argues that makes her the best pick for the seat.

Both Fallone and Megna argue that Roggensack is part of a dysfunctional Supreme Court that has suffered through high-profile altercations, including in 2011 when Justice Ann Walsh Bradley accused Justice David Prosser of choking her during an argument. Prosser denied the allegation and a special prosecutor who investigated the claim declined to bring charges.

Roggensack is generally viewed as part of the four-justice conservative majority on the court along with Prosser, Annette Ziegler and Michael Gableman.

There are also local elections on Tuesday's ballot.

In Waukesha County, five Republicans are running for an open spot in the state Assembly caused by the departure of Paul Farrow to the state Senate in December. There are no Democrats running for the Assembly seat, so the Republican who wins the primary will likely take the 98th District seat, barring an unforeseen write-in campaign.

The candidates in that race are Village of Pewaukee Police Chief Ed Baumann; construction project manager Todd Greenwald; Marquette University graduate student Matt Morzy; window cleaning business owner Adam Neylon; and Jeanne Tarantino, the former chief of staff to Lt. Gov. Rebecca Kleefisch.

Waukesha County also reported low voter turnout through midday.

"I was out at two sites this morning. It's light. It's very light," said Kathy Novack, Waukesha County Clerk.

The city of New Berlin in Waukesha County also has a mayoral primary.

Mayor Jack Chiovatero, in office for eight years, is seeking re-election.

He is being challenged by Alderman David Ament, former mayor Mary Claire Lanser, and political newcomers Janet Schulze and Joseph Wineke.

Schulz is an insurance company employee and Wineke is a sales manager. Neither has held elective office before.

Waukesha County typically turns out voters in high number, sometimes playing a key role in statewide races.

Carroll University Professor Lilly Goren said this primary may be no exception.

"That may sort of tilt the state Supreme Court race in this particular election cycle because you'll have potentially higher turnout in Waukesha," Goren said.

In Milwaukee, by early afternoon, many precincts were still in double-digits.

Goren sad the reason may be more than just bad weather and a low-profile primary.

"(I'm) not really surprised by that. In deepest, darkest February, and after also a very long campaign season, that Wisconsin experienced up close and personal in the presidential race and in the Senate race, that people are a little bit fatigued," Goren said.